Latch shackle



Jan I931. ALLEN LATCH SHAGKLE *Filed on'ia, 8. 1927 INVENTOR.

Patented Jan. 6,1931

- UNITED STATES EDGAR ALLEN, or WIcIirrA FALLS; LATCH snAcxLE I IApplication filed October 8,1927.

This invention relates to new and useful improvements in a latchshackle.

One object of the invention is to provide a connecting shackle of thecharacter de- 5 scribed whereby a traveling block bail,b a1ler bail, andthe like, may be connected to a rope or cable socket in such mannerthat'the connected parts will not come into contact, or become injuredwhen the line, carrying said rope socket, is permitted to slack, or fromother causes.

Another object of the invention is to provide a shackle of the characterdescribed,

which is very strong and durable and which has no projecting parts tohang, or become broken in going into or coming out of the well bore,when the shackle is used in well drilling 0 erations.

A urther feature of the invention is to provide a novel form of latch,or latching tool, whereby the shackle may be readlly connectcd to anddisconnected from the cable socket.

With the above and other objects inview this invention has particularrelation to certain novel features of construction, operation andarrangement of parts an example of which is given in this specificationand illustrated in the accompanying drawings, where- Figure 1 shows anelevational view, partly in section, of one form of the shackle.

Figure 2 shows an edge view of a connectinv link employed.

a igure 3 shows an end view of said link.

Figure 4 showsan elevational view of a slightly modified form of theshackle, partly in section and Figure 5 shows a side view of aconnecting link employed in this form.

Referring now more particularly to the drawings, wherein like numeralsof reference designate similar parts in each of the figures, the numeral1 designates the body of the shackle which is formed with the end eyes2, 2, one to receive the cable socket latch having the eye 3, and-theother to receive the bail 4, of a traveling block, bailer, or the like.The main body of the shackle is of a general elliptical form and betweenthe eyes 2, 2, is

2 Serial no. 225,096. a v r v. thickened inwardly. One side of theshackle 1s removable." In the form'shown in- Figure '1 this removablepart comprises a bar 5 whose ends are formed with mortises 6, 6dovetailed in torm' in which the correspondi-n'glyf shaped tenons 7 7,ofthe abutting parts of the'bo'dy 1 interlock and these interlockingparts are furthersecured together by means of the bolts 8, 8, which arefitted-inwardly through them and whose heads are counter sunk in saidbar. The inner ends of these bolts are threadedto receive; the nuts-9,9, which are also countersunk into the corresponding tenons 7 to the endthat the shackle will have no unnecessary projections to causetheshackle' to hang, when in use. The bar 5 has the inwardly extendingspaced clamp flanges 10, 10, which embrace the relatively flat inwardlyextending tongue 11, into which the inwardly thickened portion of thebody 1 is formed. 1 The outer sides ofthe clamp flanges 10, aresubstantially flush with the-outer side of the adjacent partsof thebody-1 to give-the shackle asmooth outside contour and a set screw 12,is fitted through said clamp flanges and tongue withits head countersunkinto one of said flangesand its other end threaded into the other clampflange.

In the form shown in Fi has the dovetailed end mortlses 6' 6 adapted toreceive, and. interlock with, the corresponding end tenons 7 7, intowhich the adjacent parts of the shackle body 1 is formed. Theseinterlocking parts are further secured together by means of setscrews re4 the bar 5' 8, 8 which are fitted inwardly therethrough and whose headsare countersunk into the bar 5 and whose inner ends are threaded throughthe tenons 7' 7'.

The bar 5' is thickened inwardly and said through said body 1' and saidtenon 107.

This type of shackle also has a comparative:

ly smooth exterior surface.

By the use of the type of shackle hereinabove described the connectedparts will be kept apart and will be better protected andconsequentlywill not be so subject to wear "or injury." a

While I have shown what I now consider lithe preferred forms of thedevice it is obvious that mechanical changes and adaptations maybe made.within the scopeofthe app fc a m t a What I claim is 10 "1. A shackle ofgeneral elliptical form,

- having end eyes and forinedof-separable complemental parts, one partcomprisinga removable side bar whose ends are formed V with mortises,said bar also having, inwardly 15 extending spaced clampflangesintermediate its-ends-a'nd havinga slot between them,the' othercomplemental; part having ftenons which fit into said mortises and alsohaving a wide,- relatively flat, inwardly extending m tongue fitted intosaid slot between said clamp-flanges, bolts securing said tenons in saidmortises and a set screw-securing said tongue between said clampflanges. Y 1

*2. A shackle having end eyes and formed ofsepara-bleicomplementalparts, one part scomprisingna removable side bar and the otherpartq-liaving-facing, spaced ends, said bar andthe adj acent ends ofsaid other complemental part being formed one with tenons and-the otherwith'niortises adapted to receive said tenons, means passing throughsaid-'intermeshing parts to, secure said bar in=p1ace said bar and. theother complemental part beingeachextended inwardly and one being formedwith-camp flanges, spaced apart to form a slot'between them and theother'with wide, flat, tongue which 'fits in saidseat between saidflanges and a securing means passing: through said qflanges and I tongueto secure them together.

name .to thisspecification. x V

" EDGAR ALLEN.

I In testimony whereof I have signed my

